.. _gwpy-cli-example-spectrum-three-ifo:

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Spectrum with three interferometers
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.. code:: sh

   $ gwpy-plot spectrum \
       --chan H1:GDS-CALIB_STRAIN L1:GDS-CALIB_STRAIN \
       --chan V1:Hrec_hoft_16384Hz \
       --start 1187008866 \
       --duration 32 \
       --xmin 10 \
       --xmax 4000 \
       --interactive

.. image:: spectrum-three-ifo.png
   :align: center
   :alt: Spectrum with three interferometers